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When particles smash into one another, their gravitational pull is trapped, meaning researchers could make one at the LHC 2.0.

If enough energy is contained between those particles, it can collapse that could create two black holes that quickly merge into one.

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A black hole could not swallow Earth if it is made here, however

The study published in the journal Physical Review Letters reads: “We find that the threshold for black hole formation is lower (by a factor of a few) than simple hoop conjecture estimates, and, moreover, near this threshold two distinct apparent horizons first form postcollision and then merge.“

However, thanks to a process known as Hawking Radiation, experts say that Earth is in no danger of being swallowed by a man-made black hole.

His theory said particles could rob black holes of their energy making them disappear at a minuscule rate as they release everything they had once swallowed in a trickle of dust – this theory was proved last year.

Inside the Large Hadron Collider

Tue, October 20, 2015

Pictures of The Large Hadron Collider which is the worlds most powerful particle accelerator held in Geneva, Switzerland.

Frans Pretorius, a theoretical physicist at Princeton University, told LiveScience: "The one common misconception about the small black holes that may form at the Large Hadron Collider is that they would swallow the Earth.

"With about as much confidence as we can say anything in science, this is completely impossible."